New Book


The dramatic and action-packed story of the last mysterious place on earth—the world’s seafloor—and the deep-sea divers, ocean mappers, marine biologists, entrepreneurs, and adventurers involved in the historic push to chart it, as well as the opportunities, challenges, and perils this exploration holds now and for the future.

As seen in...

The New York Times

“The author’s words should be required reading,” writes award-winning author Simon Winchester in front-page feature review.


Laura Trethewey

I’m an award-winning ocean journalist and author of The Imperiled Ocean (2020) and The Deepest Map (2023). My writing has been published and featured in The Wall Street Journal, The Guardian, The Atlantic, The Globe & Mail, The Walrus, Smithsonian Magazine and Hakai Magazine.

Debut Book


An exploration of the earth’s last wild frontier, filled with high-stakes stories that explores a vast territory undergoing tremendous change and the people and places facing an uncertain future.

Media presence

As Seen On

Laura Trethewey on Nautilus Live TV

Laura Trethewey on Keen On Podcast